REFERENCES
- Baker, B. (1982). Minspeak: A semantic compaction system that makes self expression easier for communicatively disabled individuals. Byte, 7,186–202.
- Bernstein, H. (1973). A description of some current sign systems designed to represent English. American Annals of the Deaf, 118, 454–463.
- Beukelman, D. R., & Yorkston, K. M. (1982). Communication interaction of adult communication system use. Topics in Lan-guage Disorders, 2, 39–53.
- Bliss, K. C. (1965). Semantography. Sydney, Australia: Seman-tography-Blissymbolic Publications.
- Damper, R. I. (1986). Rapid message composition for large vocabulary speech output aids: A review of the possibilities. Augmentative and Alternative Communication, 2, 152–159.
- Goodenough-Trepagnier, C., & Rosen, M. J. (1988). Predictive assessment for communication aid prescription: Motor-deter-mined maximum communication rate. In L. E. Bernstein (Ed.), The vocally impaired (pp. 167–185). Philadelphia: Grune & Stratton.
- Heckathorne, C. A., Voda, J. A., & Leibowitz, L. J. (1987). De-sign rationale and evaluation of the portable anticipatory com-munication aid—PACA. Augmentative and Alternative Com-munication, 3, 170–180.
- Scull, J., & Hill, L. (1988). A computerized communication mes-sage preparation program that "learns" the user's vocabulary. Augmentative and Alternative Communication, 4, 40–44.
- Vanderheiden, G. C., & Kelso, D. P. (1987). Comparative analy-sis of fixed-vocabulary communication acceleration tech-niques. Augmentative and Alternative Communication, 3, 196–206.
- Venkatagiri, H. S. (1991). The Messenger. TLC Products, Inc., 2511 Green Hills Dr., Ames, Iowa 50010 USA.
- Venkatagiri, H. S. (1992). The effect of rate and pitch on the intelligibility of synthesized speech. Augmentative and Alter-native Communication, 7,284–289.
- Winer, B. J. (1971). Statistical principles in experimental design. New York: McGraw-Hill.
- Yorkston, K. M., Dowden, P. A., Honsinger, M. J., Marriner, N., & Smith, K. (1988). A comparison of standard and user vo-cabulary lists. Augmentative and Alternative Communication, 4, 189–210.